2001 Yamaha YZ125(N)/LC Owner's Service Manual

2001 Yamaha YZ125(N)/LC Service and Maintenance Documentation

• Covers the 2001 Yamaha YZ125(N)/LC series, specifically documenting liquid-cooled 2-stroke engine performance, chassis settings, and 6-speed transmission specifications
• Official Yamaha publication P/N 5MV-28199-30, first edition June 2000
• Contains 50+ exploded-view diagrams, comprehensive torque tables, and detailed maintenance interval schedules for racing preparation
• File link appears in your order confirmation straight away
• Stored against your account so you can retrieve it after a hard-drive loss
• Suitable for printing individual sections for shop-floor use
• Full-text search finds any part number in seconds
• This specific edition is the factory-authorized reference for the 2001 YZ125 build, including critical break-in procedures for internal components and specialized tuning adjustments

Documentation Scope

The 2001 Yamaha YZ125(N)/LC service manual provides an in-depth summary of operational procedures, inspection points, and basic maintenance tasks required for competitive performance. Organized into seven distinct chapters, this documentation outlines the technical layout of the engine, chassis, and electrical systems, while providing clear, sequential guides for engine removal, transmission assembly, and front fork adjustments. The publication includes information for all global variants, ensuring correct assembly for both domestic and international configurations.

Specification and Technical Reference

Detailed specifications are provided for every major mechanical component, including piston clearance parameters, gear ratios, and cooling system capacities. Engine assembly data lists specific torque values such as 28 Nm for the cylinder head nuts and 80 Nm for the clutch boss, allowing for precise mechanical work.

Valve clearance for the intake is documented in the engine specification tables to assist with periodic checks. Coolant system capacity for the 2001 Yamaha YZ125 is listed at 1.00 liters to aid in radiator maintenance. The CDI magneto pick-up coil resistance is specified at 248–372 ohms in the electrical diagnostic charts. For more information, please see what an OEM service publication covers regarding proper machine upkeep. This 558-page Yamaha OEM service manual covers the 2001 YZ125(N)/LC, documenting engine, chassis, electrical, and maintenance specifications for the 5MV-series build.